GB1097077A - Strengthening of glass - Google Patents

Strengthening of glass

Info

Publication number
GB1097077A
GB1097077A GB23356/65A GB2335665A GB1097077A GB 1097077 A GB1097077 A GB 1097077A GB 23356/65 A GB23356/65 A GB 23356/65A GB 2335665 A GB2335665 A GB 2335665A GB 1097077 A GB1097077 A GB 1097077A
Authority
GB
United Kingdom
Prior art keywords
glass
ions
cations
strengthened
dissolved
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB23356/65A
Inventor
Neil Hunter Ray
Samuel John Webster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB23356/65A priority Critical patent/GB1097077A/en
Priority to US549797A priority patent/US3484224A/en
Priority to BE681926D priority patent/BE681926A/xx
Priority to FR63675A priority patent/FR1481685A/en
Publication of GB1097077A publication Critical patent/GB1097077A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
    • C03C21/001—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions
    • C03C21/005—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface in liquid phase, e.g. molten salts, solutions to introduce in the glass such metals or metallic ions as Ag, Cu
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • C09B67/0046—Mixtures of two or more azo dyes

Abstract

Glass is strengthened by subjecting it to the action of (a) at least one etching agent dissolved in at least one molten salt; and (b) a melt containing Ag+ ions, in which at least 90% of the cations are Na+ ions. Step (b) may be performed at the same time as or after step (a). Etching agents are defined as substances that can remove a thin uniform layer from the glass without giving rise to H+ ions or other ions having greater affinity for the glass than cations in the melt-system in which the agent is dissolved. Etching agents include fluorides and borofluorides of sodium and potassium, ammonium fluorosulphonate and silver fluoride. In step (b) there is 0.5-5.0% Ag, added either as the metal or as a salt, e.g. AgNO3. The useful temperature of (a), or (a) and (b) jointly, is 250 DEG -450 DEG C.; that of (b) is 200 DEG -400 DEG C. The glass may be tempered and strengthened by preheating to just below its softening point, e.g. to 600 DEG -700 DEG C. and then performing steps (a) and (b). After treatment the glass may be cooled, washed and dried.
GB23356/65A 1965-06-01 1965-06-01 Strengthening of glass Expired GB1097077A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB23356/65A GB1097077A (en) 1965-06-01 1965-06-01 Strengthening of glass
US549797A US3484224A (en) 1965-06-01 1966-05-13 Method of chemically strengthening glass
BE681926D BE681926A (en) 1965-06-01 1966-06-01
FR63675A FR1481685A (en) 1965-06-01 1966-06-01 Glass treatment process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23356/65A GB1097077A (en) 1965-06-01 1965-06-01 Strengthening of glass

Publications (1)

Publication Number Publication Date
GB1097077A true GB1097077A (en) 1967-12-29

Family

ID=10194336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23356/65A Expired GB1097077A (en) 1965-06-01 1965-06-01 Strengthening of glass

Country Status (3)

Country Link
US (1) US3484224A (en)
BE (1) BE681926A (en)
GB (1) GB1097077A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3687799A (en) * 1969-12-11 1972-08-29 Owens Illinois Inc Glass lasers of increased heat dissipation capability made by ion exchange treatment of the laser glass
DE4025814C1 (en) * 1990-08-16 1991-11-28 Schott Glaswerke, 6500 Mainz, De Glass prodn. process - by introducing silver ions into glass surface and treating in steam atmos. to form silicon hydroxide gps.
US8499583B2 (en) * 2005-03-31 2013-08-06 Hoya Corporation Method of manufacturing magnetic-disk glass substrate and method of manufacturing magnetic disk
DE102008059700A1 (en) * 2008-11-29 2010-06-02 Eckart Gmbh Colored glass particles, process for their preparation and their use

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647068A (en) * 1948-03-16 1953-07-28 Bishop H Russell Process of treating vitreous materials
BE648331A (en) * 1963-05-24

Also Published As

Publication number Publication date
US3484224A (en) 1969-12-16
BE681926A (en) 1966-12-01

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